Very large spontaneous electric polarization in BiFeO3 single crystals at room temperature and its evolution under cycling fields
TLDR
In this article, electric polarization loops are measured at room temperature on highly pure BiFeO3 single crystals synthesized by a flux growth method, and the resulting low leakage currents allow the authors to measure a large spontaneous polarization in excess of 100μCcm−2.Abstract:
Electric polarization loops are measured at room temperature on highly pure BiFeO3 single crystals synthesized by a flux growth method. Because the crystals have a high electrical resistivity, the resulting low leakage currents allow the authors to measure a large spontaneous polarization in excess of 100μCcm−2, a value never reported in the bulk. During electric cycling, the slow degradation of the material leads to an evolution of the hysteresis curves eventually preventing full saturation of the crystals.read more
Citations
More filters
Journal ArticleDOI
Physics and Applications of Bismuth Ferrite
Gustau Catalan,James F. Scott +1 more
TL;DR: In this paper, the authors summarize both the basic physics and unresolved aspects of BiFeO3 and device applications, which center on spintronics and memory devices that can be addressed both electrically and magnetically.
Journal ArticleDOI
Multiferroicity: the coupling between magnetic and polarization orders
TL;DR: In this article, the authors highlight the physical concepts of multiferroicity and the current challenges to integrate the magnetism and ferroelectricity into a single-phase system and summarize various strategies used to combine the two types of order.
Journal ArticleDOI
Conduction at domain walls in oxide multiferroics
Jan Seidel,Lane W. Martin,Lane W. Martin,Qing He,Q. Zhan,Ying-Hao Chu,A. Rother,M. E. Hawkridge,Petro Maksymovych,Pu Yu,M. Gajek,Nina Balke,Sergei V. Kalinin,Sibylle Gemming,Feng Wang,Gustau Catalan,James F. Scott,Nicola A. Spaldin,Joseph Orenstein,Joseph Orenstein,Ramamoorthy Ramesh,Ramamoorthy Ramesh +21 more
TL;DR: The observation of room-temperature electronic conductivity at ferroelectric domain walls in the insulating multiferroic BiFeO(3) shows that the conductivity correlates with structurally driven changes in both the electrostatic potential and the local electronic structure, which shows a decrease in the bandgap at the domain wall.
Journal ArticleDOI
Piezoelectric and ferroelectric materials and structures for energy harvesting applications
TL;DR: A detailed overview of the energy harvesting technologies associated with piezoelectric materials along with the closely related sub-classes of pyroelectrics and ferro-electrics can be found in this article.
Journal ArticleDOI
Solution Combustion Synthesis of Nanoscale Materials
TL;DR: This Review focuses on the analysis of new approaches and results in the field of solution combustion synthesis (SCS) obtained during recent years, emphasizing the chemical mechanisms that are responsible for rapid self-sustained combustion reactions.
References
More filters
Journal ArticleDOI
Multiferroic and magnetoelectric materials
TL;DR: A ferroelectric crystal exhibits a stable and switchable electrical polarization that is manifested in the form of cooperative atomic displacements that arises through the quantum mechanical phenomenon of exchange.
Journal ArticleDOI
Epitaxial BiFeO3 multiferroic thin film heterostructures.
Jian Wang,Jeffrey B. Neaton,Haimei Zheng,Valanoor Nagarajan,Satishchandra Ogale,B. T. Liu,Dwight Viehland,V. Vaithyanathan,Darrell G. Schlom,Umesh V. Waghmare,Nicola A. Spaldin,Karin M. Rabe,Manfred Wuttig,Ramamoorthy Ramesh +13 more
TL;DR: Enhanced polarization and related properties in heteroepitaxially constrained thin films of the ferroelectromagnet, BiFeO3, and combined functional responses in thin film form present an opportunity to create and implement thin film devices that actively couple the magnetic and ferroelectric order parameters.
Journal ArticleDOI
Spiral magnetic ordering in bismuth ferrite
TL;DR: In this article, the magnetic ordering of the iron ions in bismuth ferrite BiFeO3 was obtained by a study with a high-resolution time-of-flight neutron diffractometer.
Journal ArticleDOI
Structure of a ferroelectric and ferroelastic monodomain crystal of the perovskite BiFeO3
Frank Kubel,Hans Schmid +1 more
TL;DR: In this paper, a ferroelastic monodomain single crystal of BiFeO3 at space group R3c is described as a rhombohedrally distorted simple cubic perovskite cell.
Journal ArticleDOI
Electrical control of antiferromagnetic domains in multiferroic BiFeO3 films at room temperature.
T. Zhao,T. Zhao,Andreas Scholl,F. Zavaliche,Kunwoo Lee,M. Barry,A. Doran,M. P. Cruz,M. P. Cruz,Ying-Hao Chu,Claude Ederer,Nicola A. Spaldin,R. R. Das,D. M. Kim,Seung Hyub Baek,Chang-Beom Eom,Ramamoorthy Ramesh +16 more
TL;DR: This work demonstrates the first observation of electrical control of antiferromagnetic domain structure in a single-phase multiferroic material at room temperature with high resolution images, indicating a strong coupling between the two types of order.